Question

define velocity . Is it a scalar or a vector , and why ?

Answer 1

You can tell if a quantity is a vector by whether or not it has a direction associated with it. Example: Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude. The speed is the magnitude of the velocity. A car has a velocity of 40 mph east.

Answer 2

▪Velocity is the rate of change of displacement .✔✔

▪Velocity is a vector quantity .✔✔